CompactPCI® Serial  XMC Module Carrier • PCI Express® 1 to 4 Lane Support

The SK2-SESSION is a peripheral slot board for PICMG® CompactPCI® Serial systems and acts as carrier card for an XMC-style mezzanine module. XMC modules are specified by ANSI/VITA 42, as an advanced replacement for PMC modules. While using the same form factor as PMC cards, XMC modules are provided with a PCI Express® interface.
The SK2-SESSION is equipped with a bidirectional 4-lane PCI Express® Gen3 redriver, for optimum 8GT/shigh speed signal integrity, and can be installed into any peripheral slot of a CompactPCI® Serial backplane. The optimum performance however can be achieved when the SK2-SESSION is operated in a CompactPCI® Serial fat pipe slot. The SK2-SESSION requires at least a single PCI Express® lane from the backplane, passed over across the connector P1 to a PCIe redriver circuit. Up to four PCI Express® lanes are supported, when the SK2-SESSION is installed into a CompactPCI® Serial fat pipe peripheral slot, delivering a total link bandwidth of up to 32Gbps.
The 4-lane bidirectional redriver is suitable up to 8.0Gbps (PCIe 3.0) data transfer rate per lane, and ensures optimum signal integrity (wider opening with respect to the eye diagrams). The XMC module connector J15 is directly tied to the redriver circuit. In addition, a zero delay PCIe Gen3 clock buffer is provided on-board.

Downloads & Ressources

General Information

Expansion Modules

XMC Mezzanine Modules
Assembly Units - SK2-SESSION with XMC Module
Alternate XMC Module Carrier


  • PICMG® CompactPCI® Serial standard (CPCI-S.0) peripheral slot card
  • Single size Eurocard 3U 4HP 100x160mm2
  • CPCI-S backplane connector P1 & P2 (fat pipe slot up to PCIe® x 4)

Simplified Block Diagram

sk2 blk
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